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Posted to dev@mina.apache.org by "Roberto Deandrea (JIRA)" <ji...@apache.org> on 2019/04/18 10:10:00 UTC
[jira] [Created] (SSHD-911) Deadlock in Apache SshClient used for
local port forwarding
Roberto Deandrea created SSHD-911:
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Summary: Deadlock in Apache SshClient used for local port forwarding
Key: SSHD-911
URL: https://issues.apache.org/jira/browse/SSHD-911
Project: MINA SSHD
Issue Type: Bug
Affects Versions: 2.2.0
Reporter: Roberto Deandrea
Attachments: spxp.usrdump.20382184@AIX72.DMZ.20190417205240026.log
Hi Lyor,
We have an Apache SSHD 2.2.0 client and server SSH pair used for local port forwarding of different protocols.
In our lab environment we found that sometimes when the SSH client for any reason is disconnecting from the SSH server, a DEADLOCK happens on the sshClient regarding the threads in the thread pool.
We are using builtin nio2 implementation for our SshClient.
The deadlock is regarding the ClientChannelPendingMessagesQueue class added to fix routing problems for local port forwarding in the past.
Attached you can find the thread dump taken after the deadlock happend.
Can you please troubleshoot this problem ?
[^spxp.usrdump.20382184@AIX72.DMZ.20190417205240026.log]
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